This component tracks the routine care and feeding of RelEng systems (machine management), reconfigs of masters, and any tree closures or downtimes. This includes physical machines in any of Mozilla's colos, as well as instances in AWS.

We have had very bad wait times on XP recently. With the move of more tests from hardware to AWS for Windows 7 (e.g, bug 1291015), we have the opportunity to rebalance the pools to increase the throughput for XP jobs.
Current pool sizes, according to arr:
XP - 122, w7 - 281, w8 - 194
Let's move 20 machines from w7 to XP and see how that impacts wait times.

t-xp32-ix-125 (10.26.41.145) seems to not be re-imaged from t-w732-ix-264. It has been trying to sign on to bm127 as t-w732-ix-264, but the buildbot configs doesn't allow it. Renamed C:\slave\buildbot.tac and restarted so we don't get SNS messages about twisted.cred.error.UnauthorizedLogin.